The procedural steps for developing an expert system for designing signals at isolated intersections are described and the most important development issues for each step are discussed. The steps include problem analysis and definition, preliminary prototype specification, knowledge acquisition strategy development, prototype development plan, knowledge extraction, knowledge representation, too...

By Bezout’s theorem, three quadric surfaces may have infinitely intersections, but have at most eight isolated intersections. In this paper, we present an efficient and robust algorithm to obtain the isolated and the connected components of the real intersections of three quadric surfaces. Moreover, the conditions under which the intersections are finite and infinite are thoroughly investigated...

delay is one of the principal measures of performance used to determine the level of service (los) at signalized intersections and several methods have been widely used to estimate vehicular delay. very few studies only have been carried out to estimate delay at signalized intersections under mixed traffic conditions prevailing in developing countries like india. in the present study, various p...

Fuzzy reasoning has become an important intelligent control method for traffic operation. This paper proposes a new fuzzy control system for signal control of an isolated intersection. This new fuzzy signal control system (FSCS) contains fuzzy phase selector and fuzzy green phase extender functions, which located in different levels of this multilevel signal control system. The phase selector i...

Population and economic growth of urban areas have led to intensive use private vehicles, thereby increasing traffic volume congestion on roads. The management in the city is a challenge for concerned authorities, signalized intersections are primary interest management. Interpreting patterns current signal operations can provide thorough insights take appropriate actions. In this view, compreh...